/* ═══════════════════════════════════════════════════════════════
   produtospiscina.pt — Landing Page Stylesheet
   ═══════════════════════════════════════════════════════════════ */

/* ─── Variables ──────────────────────────────────────────────── */
:root {
  --c-dark:        #0a1f44;
  --c-navy:        #0e3a6e;
  --c-blue:        #0ea5e9;
  --c-blue-hover:  #0284c7;
  --c-blue-light:  #e0f2fe;
  --c-blue-50:     #f0f9ff;
  --c-text:        #1e293b;
  --c-text-mid:    #475569;
  --c-text-light:  #94a3b8;
  --c-border:      #e2e8f0;
  --c-bg:          #f8fafc;
  --c-white:       #ffffff;
  --c-success:     #16a34a;
  --c-success-bg:  #f0fdf4;
  --c-error:       #dc2626;
  --c-error-bg:    #fef2f2;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --shadow-sm: 0 1px 4px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.10), 0 4px 12px rgba(0,0,0,.05);

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --nav-h: 64px;
  --t:     0.2s ease;
  --container: 900px;
}

/* ─── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ─── Typography ─────────────────────────────────────────────── */
h1 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; line-height: 1.15; letter-spacing: -.03em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.25; letter-spacing: -.02em; }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.3; }
p  { color: var(--c-text-mid); }

/* ─── Layout ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 72px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header p { font-size: 1.05rem; margin-top: 12px; max-width: 540px; margin-left: auto; margin-right: auto; }

/* ─── Navbar ─────────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-brand {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-dark);
  letter-spacing: -.01em;
}
.nav-brand span { color: var(--c-blue); }
.badge-sale {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff7ed;
  color: #c2410c;
  border: 1px solid #fed7aa;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  padding: 4px 12px;
}
.badge-sale::before { content: '●'; font-size: .55rem; animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

/* ─── Hero ───────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(155deg, var(--c-dark) 0%, var(--c-navy) 50%, #0c4a6e 100%);
  padding: 96px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(14,165,233,.15) 0%, transparent 60%),
                    radial-gradient(circle at 80% 20%, rgba(56,189,248,.12) 0%, transparent 50%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14,165,233,.15);
  border: 1px solid rgba(14,165,233,.3);
  color: #7dd3fc;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 {
  color: var(--c-white);
  margin-bottom: 20px;
}
.hero h1 .domain { color: #7dd3fc; }
.hero-sub {
  font-size: 1.15rem;
  color: #94c4e0;
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.65;
}
.hero-bullets {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}
.hero-bullet {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  color: #cbd5e1;
  font-size: .875rem;
  padding: 6px 14px;
  border-radius: 999px;
}
.hero-bullet svg { flex-shrink: 0; }

/* ─── Buttons ────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--c-blue);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius);
  transition: background var(--t), transform var(--t), box-shadow var(--t);
  box-shadow: 0 4px 14px rgba(14,165,233,.35);
}
.btn-primary:hover {
  background: var(--c-blue-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(14,165,233,.4);
}
.btn-primary:active { transform: translateY(0); }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }

/* ─── Value Cards ─────────────────────────────────────────────── */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.value-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--t), transform var(--t);
}
.value-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.value-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--c-blue-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
}
.value-card h3 { margin-bottom: 8px; }

/* ─── Form Section ───────────────────────────────────────────── */
.form-section {
  background: var(--c-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-lg);
  padding: 48px 40px;
  max-width: 600px;
  margin: 0 auto;
}
.form-row { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 6px;
}
.form-label .req { color: var(--c-blue); margin-left: 2px; }
.form-input, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius);
  font-size: .975rem;
  color: var(--c-text);
  background: #fff;
  transition: border-color var(--t), box-shadow var(--t);
  outline: none;
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--c-blue);
  box-shadow: 0 0 0 3px rgba(14,165,233,.12);
}
.form-input.error, .form-textarea.error { border-color: var(--c-error); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--c-text-light); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-hint { font-size: .8rem; color: var(--c-text-light); margin-top: 4px; }
.field-error { font-size: .8rem; color: var(--c-error); margin-top: 4px; display: none; }
.field-error.visible { display: block; }

/* ─── Form Submit ─────────────────────────────────────────────── */
.btn-submit {
  width: 100%;
  padding: 15px;
  background: var(--c-blue);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--t), transform var(--t);
  box-shadow: 0 4px 14px rgba(14,165,233,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-submit:hover { background: var(--c-blue-hover); transform: translateY(-1px); }
.btn-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.btn-submit .spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: none;
}
.btn-submit.loading .spinner { display: block; }
.btn-submit.loading .btn-text { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Feedback Messages ───────────────────────────────────────── */
.form-success, .form-error-msg {
  display: none;
  padding: 16px 20px;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  margin-top: 16px;
  align-items: center;
  gap: 10px;
}
.form-success { background: var(--c-success-bg); color: #15803d; border: 1px solid #bbf7d0; }
.form-error-msg { background: var(--c-error-bg); color: #b91c1c; border: 1px solid #fecaca; }
.form-success.show, .form-error-msg.show { display: flex; }

/* ─── Footer ─────────────────────────────────────────────────── */
.footer {
  background: var(--c-dark);
  color: rgba(255,255,255,.5);
  text-align: center;
  padding: 28px 24px;
  font-size: .85rem;
}
.footer a { color: rgba(255,255,255,.7); transition: color var(--t); }
.footer a:hover { color: #fff; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 700px) {
  .value-grid { grid-template-columns: 1fr; gap: 16px; }
  .form-section { padding: 32px 20px; }
  .hero { padding: 72px 0 60px; }
}
@media (max-width: 480px) {
  .hero-bullets { flex-direction: column; align-items: center; }
}